Yeah, my Mustang is a little bit different than any other I've seen. That's part of the reason I don't really pay attention to them any more. Do something different than supercharge it and put on Bullitt wheels and people flip out. Pretty pathetic really. There are actually a fair amount of Mustangs out there with attention paid to the twisties...
www.griggsracing.com makes a buttload of parts for it, most people don't want to spend as much on their suspension as they did on their engine though.
And the little bit I have been able to drive it the GSX is way more fun than the Mustang. Mostly that whole boost thing though.